<template>
<uni-shadow-root class="nav-bar-index"><view v-if="fixed && placeholder" :style="'height: '+(height)+'px;'"></view>

<view :class="(utils.bem('nav-bar', { fixed }))+' custom-class '+(border ? 'van-hairline--bottom' : '')" :style="'z-index: '+(zIndex)+'; padding-top: '+(safeAreaInsetTop ? statusBarHeight : 0)+'px;'">
  <view class="van-nav-bar__left" @click="onClickLeft">
    <block v-if="leftArrow || leftText">
      <van-icon v-if="leftArrow" size="16px" name="arrow-left" custom-class="van-nav-bar__arrow"></van-icon>
      <view v-if="leftText" class="van-nav-bar__text" hover-class="van-nav-bar__text--hover" hover-stay-time="70">{{ leftText }}</view>
    </block>
    <slot v-else name="left"></slot>
  </view>
  <view class="van-nav-bar__title title-class van-ellipsis">
    <block v-if="title">{{ title }}</block>
    <slot v-else name="title"></slot>
  </view>
  <view class="van-nav-bar__right" @click="onClickRight">
    <view v-if="rightText" class="van-nav-bar__text" hover-class="van-nav-bar__text--hover" hover-stay-time="70">{{ rightText }}</view>
    <slot v-else name="right"></slot>
  </view>
</view></uni-shadow-root>
</template>
<wxs src="../wxs/utils.wxs" module="utils"></wxs>
<script>
import VanIcon from '../icon/index.vue'
global['__wxVueOptions'] = {components:{'van-icon': VanIcon}}

global['__wxRoute'] = 'nav-bar/index'
import { VantComponent } from '../common/component';
VantComponent({
  classes: ['title-class'],
  props: {
    title: String,
    fixed: {
      type: Boolean,
      observer: 'setHeight',
    },
    placeholder: {
      type: Boolean,
      observer: 'setHeight',
    },
    leftText: String,
    rightText: String,
    leftArrow: Boolean,
    border: {
      type: Boolean,
      value: true,
    },
    zIndex: {
      type: Number,
      value: 1,
    },
    safeAreaInsetTop: {
      type: Boolean,
      value: true,
    },
  },
  data: {
    statusBarHeight: 0,
    height: 44,
  },
  created() {
    const { statusBarHeight } = wx.getSystemInfoSync();
    this.setData({
      statusBarHeight,
      height: 44 + statusBarHeight,
    });
  },
  mounted() {
    this.setHeight();
  },
  methods: {
    onClickLeft() {
      this.$emit('click-left');
    },
    onClickRight() {
      this.$emit('click-right');
    },
    setHeight() {
      if (!this.data.fixed || !this.data.placeholder) {
        return;
      }
      wx.nextTick(() => {
        this.getRect('.van-nav-bar').then((res) => {
          this.setData({ height: res.height });
        });
      });
    },
  },
});
export default global['__wxComponents']['nav-bar/index']
</script>
<style platform="mp-weixin">
@import '../common/index.css';

.van-nav-bar {
	position: relative;
	text-align: center;
	-webkit-user-select: none;
	user-select: none;
	line-height: 88rpx !important;
	line-height: var(--nav-bar-height, 88rpx);
	background-color: #fff;
	background-color: var(--nav-bar-background-color, #fff)
}

.van-nav-bar__text {
	display: inline-block;
	vertical-align: middle;
	margin: 0 -16px;
	margin: 0 -var(--padding-md, 16px);
	padding: 0 16px;
	padding: 0 var(--padding-md, 16px);
	color: #1989fa;
	color: var(--nav-bar-text-color, #1989fa)
}

.van-nav-bar__text--hover {
	background-color: #f2f3f5;
	background-color: var(--active-color, #f2f3f5)
}

.van-nav-bar__arrow {
	vertical-align: middle;
	font-size: 16px;
	font-size: var(--nav-bar-arrow-size, 16px);
	color: #1989fa;
	color: var(--nav-bar-text-color, #1989fa)
}

.van-nav-bar__arrow+.van-nav-bar__text {
	margin-left: -20px;
	padding-left: 25px
}

.van-nav-bar--fixed {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%
}

.van-nav-bar__title {
	max-width: 60%;
	margin: 0 auto;
	color: #323233;
	color: var(--nav-bar-title-text-color, #323233);
	font-weight: 500;
	font-weight: var(--font-weight-bold, 500);
	font-size: 16px;
	font-size: var(--nav-bar-title-font-size, 16px)
}

.van-nav-bar__left,
.van-nav-bar__right {
	position: absolute;
	bottom: 0;
	display: -webkit-flex;
	display: flex;
	-webkit-align-items: center;
	align-items: center;
	font-size: 14px;
	font-size: var(--font-size-md, 14px)
}

.van-nav-bar__left {
	left: 16px;
	left: var(--padding-md, 16px)
}

.van-nav-bar__right {
	right: 16px;
	right: var(--padding-md, 16px)
}
</style>